[Amps] Fwd: Re: 3-500Z tubes ...

[k6ye at q.com]

Jim, et al,

Thanks for the your input. I was quite surprised to see the difference in price, per unit, for the Amperex version ($330.00) versus RF Parts version ($190.00).

Personally if I had to purchase a new amp, I would consider one utilizing the 8877. My second choice would have dual 3-500ZGs. 

Semper Fi,

Tommy - K6YE
DX IS and CW RULES

  
----- Original Message -----
From: Jim W7RY <w7ry at centurytel.net>
To: k6ye at q.com, amps at contesting.com
Sent: Mon, 24 Dec 2012 18:59:36 -0500 (EST)
Subject: Re: [Amps] Fwd: Re:  3-500Z tubes ...

I have newer (2-3 years old) Amperex tubes in an AL-82 and original (1970's) 
Amperex 3-500/8802 tubes in a Drake L4B. They typically put out 150 to 175 
watts more for the equivalent drive of 100 watts than Eimac newer Eimac 
tubes(1990s).

Does that make them worth double the price? Probably not.



73 and Merry Christmas!
Jim W7RY


-----Original Message----- 
From: k6ye at q.com
Sent: Monday, December 24, 2012 5:20 AM
To: amps at contesting.com
Subject: [Amps] Fwd: Re: 3-500Z tubes ...


Jean,

RF Parts provides great 3-500ZG tubes and they give a two year warranty. 
Nearly all of the current 3-500ZG tubes are manufactured by Penta Labs 
(Chatsworth, California) in China. RFP means RF Parts. In my opinion, 
Amperex is a very expensive option. Good luck in your quest.

Semper Fi,

Tommy - K6YE
DX IS and CW RULES

----- Original Message -----
From: Behiels JeanPierre
To: rfamplifiers at yahoogroups.com
Cc: amps at contesting.com
Sent: Sun, 23 Dec 2012 01:39:38 -0500 (EST)
Subject: [Amps] 3-500Z tubes ...

Hi members;

Does someone have any experience about use of this type of tubes from RF 
parts ?
Especially about custumer name AMPEREX-EIMAC and possible ohters.
I don't now whitch costumer name this have ?


     3-500ZG -RFP-MP RFP Matched Pair price 379.90 US$


Regards Jean ON4AEF.
_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps

_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps